Mix all ingredients EXCEPT gluten free flour until fully blended.
Add the gluten free flour and blend only until wet. (If you over blend, the batter will become gummy.)
Bake at 350F for 30-35 minutes.
You want the edges to be a little brown, but if you insert a fork, it shouldn't come out totally clean. Gluten Free goodies tend to get react differently than traditional. If you wait until the cake is so baked that the fork does come out clean, it'll be too dry once it cools.